Posted: Nov 07, 2016 5:26 pm
I took a small sample from that formation with the curious flow pattern, UTM coordinates 13T DF 7305 5830, elevation 7800 ft:
These two pictures show the exposed surface of my sample, with a little bit of lichen on it, and the fresh surface where it cleaved:
These two pictures show the exposed surface of my sample, with a little bit of lichen on it, and the fresh surface where it cleaved: